package com.zzyl.framework.interceptor;

import cn.hutool.core.util.ObjectUtil;
import com.zzyl.common.constant.HttpStatus;
import com.zzyl.common.utils.StringUtils;
import com.zzyl.common.utils.UserThreadLocal;
import com.zzyl.framework.web.service.TokenService;
import io.jsonwebtoken.Claims;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Component
public class MemberInterceptor implements HandlerInterceptor {
    @Autowired
    private TokenService tokenService;
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String token = request.getHeader("authorization");
        if(StringUtils.isBlank(token)) {
            response.setStatus(HttpStatus.UNAUTHORIZED);
            return false;
        }
        Claims claims = tokenService.parseToken(token);
        if(ObjectUtil.isNull(claims))
        {
            response.setStatus(HttpStatus.UNAUTHORIZED);
            return false;
        }
        Object userId = claims.get("userId");
        if(ObjectUtil.isNull(userId))
        {
            response.setStatus(HttpStatus.UNAUTHORIZED);
            return false;
        }
        UserThreadLocal.set(Long.valueOf(userId.toString()));
        return true;
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        UserThreadLocal.clear();
    }
}
